From the 2nd linked article: Hollande's visit sparked painful memories of Sarkozy's 2010 reaction to three nights of violent clashes between police and armed rioters in the same area of Grenoble's outskirts after police shot a robbery suspect in a chase.

Sarkozy visited Grenoble and made one of his most criticised security speeches, pledging to strip foreign-born individuals of their French nationality if they attacked police or public officials.